Conveyer chain and flight



sept. 1s, 1934. Num/1N 1,973,818

coNvEYER CHAIN AND mmm Filed Nov, v5. 1930 /NVENTUH 2B 22 la /Y//s D. Lev/n.

Patented SepIt. 18, 1934 UNITED STATES PATENT OFFICE CONVEYER engin AND FLIGHT Ohio, a corporation of Ohio Application November 5, 1930, Serial No. 493,661

11 Claims.

The present invention relates to a novel chain and flight combination for conveyers and also to the flight and chain construction per se.

According tothe embodimentrof the invention to be hereinafter described, the chain is adapted to be circulated over a conveyer base-plate with the advancing and returning runs of the chain arranged side by side and guided on the top of the plate, certain of the chain links being so formed as to be engaged with and secured to the conveyer nights in a novel manner. The flights themselves, in addition to the novel means provided for engagement with the above mentioned links, are of a novel form which enables them to be engaged most effectively and to` disrupt, if necessary, material to be gathered by the conveyer. To thislatter end, the flights comprise as usual a lower edge or surface adapted to be moved over the base-plate surface in scraping relation thereto, the flight` being attached at one end to the chain with its other end projecting freely over the base-plate; At its top the night is provided With a 1in or plate portion lying in a plane at substantially right angles to the longitudinal line of the chain and declined from the chain to the free flight extremity. The upper edge of the 1in is provided with serrations which enable the night to engage material to be moved with a superior disruptive action.

Without further discussion of general features of the invention, I shall proceed to describe an illustrative embodiment thereof in connection with the accompanying drawing of which:

Figure 1 is a plan View of a section of the conveyer chain with the flight attached thereto.

Figure 2 is an elevation of the devices shown in Figure 1;

Figure 3 is a transverse section of a gathering conveyer equipped with the chain and flights of the present invention; and 1 Figure 4 is a centrallongitudina'l section'ofja modied form of flight.

The present application is a continuation in part of my copending application Serial No. 448,626, filed April 30, 1930, in the UnitedStates Patent Oice, Figure 3 being aY section through the gathering conveyer shown and described in that application, the fiights alonebeing of modi? fled construction. Referring to the drawings, the conveyer chain comprises alternated block links 5 and plate links 6. The block links consist of two articulated' sections '7 and 8 connected together bymeans y of a pintle 9. Sections I and 8 are provided at their ends with bores perpendicular to pintle 9 and adapted to receive pintles 10 and 11 which connect the ends of `adjacent block link sections with the plates'12 and 13 of the plate links. Plates 12 and 13 are identical, and since'plate 12 is shown to advantage in Figure 1, this plate Will be particularly described.

At one side of the chain, plate 12 is provided with a rectangularly and outwardly projecting flange 14 whose extremities are bevelled as may beseen in Figure 1. vAt the other side of the chain, plate 12 projects a substantial distance beyond the block links and is provided with perforations as at 15 and 16. It Will be noted that the pintle receiving apertures thus lie between ilange- Referring to Figure 3, reference numeral 18 designates a base-plate-having mounted at either side of its central longitudinal line chain guiding A devicescomprising upper and lower strips 19 and 2O provided with opposed grooves 21 and 22 in which flanges 14 and 17 are adapted to be en-Y gaged for guidance. With the flanges so engaged,| pintles 10 and 11 assuming a perpendicular re-` lation lto the base-plate so as to permit flexing of the chain in aplane parallel to the base-plate, while pintles 9 are in parallel relation to the baseplate so as to permit exi'ng of the chain in a `plane perpendicular to the base-plate. The size of the plates 12 and 13 is such as to position aper--v tures; l5 and 16, which are in alignment with similar apertures of plate 13, outside and clear of guide members 19 and 20 so that the apertures .may receiveflight securing pins or bolts 23 and 24' in spaced relation to the guide members.

The new ight generally indicated atA 25 comprises a substantially triangular pyramidal, hollow body portionv 26 open at one side so that the exposed edges may rest upon plate 18 inscraping relation thereto. At its large end, the body. portion is provided with a transverse wall 27 terminating a distance above plate 18 in an angular 4 flange 28 Aadapted to be engaged under a plate 13 of the conveyer chain. At the top of wall27there1`- is formed a flange 29 parallel to flange 28 and adapted to overlie a plate 12 of the chain. The

flanges 28 and 29 are provided with apertures reg` l. l

istering with the aligned apertures, above detrailing sideof .the flight should becomebroken...

One bolt at` the leading side of the ilightlfis suicient to secure the latter in operative position due to the described cooperability of the linlrplates with Wall 27. As shown in Fig. 3, the space bef.v tween flange 28 and the base-plate is suiicient to provide ample clearance between ,the..latter..and..

the bolt heads.

t the tapered end of the bodyportionv is'aflat foot portion 30 Whose lowersurface liesin the.

plane of the exposed lateral edges of the body portion. Formed on the third lateraledgeof the/bodyi-i portion and extending centrally of thefootportion 30, is a n 31 in a plane substantially per` Pendiulal iatheloneitudinal .lineof .the-conveyer f chain and deelined .from .the latter t0v 131.71.ffootpcr-.fk tion., The upper edge of 1in- 31 is,provided..with-.g, serrations as at 32. The tapered formoffthc flight-l 2aggives-itgreat strengthand permitsit to ,engage itself readily under masses of material tobe .con

veyed,.while,the finis; adapted to disrupt-material only :partially disintegrated, and also Iserves g to.

increase@ the .f strength land .carrying r,capacity of.

.sthe.igl it. The form of the flight.isparticularlyadvantageous When theflight is intended foruse in a gathering conveyer-such as has been described... my, above -mentioned .application. According i, tothe. disclosureI ofthat. applicatiomtheY gathering 35{,-,conveyer ,is-adaptedto be. sumpedv longitudinally.

fnedbytwo of its lateralA edges, a serrated finy 'orswung slaterallyinto engagement WithdisruptedA coal, the. flightsy clearing a path for themselves and propellingv` the .-coal. ,toward the lhead1 .of the conveyer.i

40g, In the modified forni of flightJ shown in Figurer.d y u Y gitudinalline, ofsaiddraft device.'

6. `A .conveyer iiight comprisingr a normally what.greaterlongitudinal extent inproportion tto y the total length of the flight,ther.body; DQrton f' terminatinginfashort foot portion 3,0". Thedec- ;,lination of .the .top ofthe flight is thus-,considerably lessabrupt thaninthe embodiment first de.-

scribed. v TheV n Y 31( is .relatively low. so y that the serra-tionsVA- 32f extend substantially down tov. the body portion.j Theteeth, itWill be noted,rare

ght having fianges overlying said projecting portions, the flanges having apertures registering with the rst named apertures, and pins passed through the apertures to connect the night and link in rigid relation.

2. A conveyer flight of elongated form adapted to bey propelled along and overa supporting surface, saidflight having a substantially'rectilinear bottom edge for scraping contact with the said surface and being declined longitudinally to a relatively thin freely projecting extremity, said flight having a top longitudinal edge provided withr serrations'..`

3. A l.conveyerflight comprising a substantially triangular .pyramidal body portion, a serrated n extendinggalong one of the lateral edges of the body portion, and means at the base end of said body-portion .adapted` to be secured to a draft device .toposition said n in a plane substantially perpendicular to the longitudinal line of said draft device.;- f

- 4..y vA vcoriveyer:flight comprising asubstantially triangular V.pyramidal body portion. having at its.

apex iagspadeflike prolongation in the planey de,-

fineda by `tvvoof-its .lateral edges, a n extendingalong ,the OthQr-lateraIgedge. of said body `portion v andalong ,said prolongation, and. means at the baseend of` said;.b0dyportion adapted 4to-be se- Y curedatoA a draft device to positionsaid iin in .a

plane. substantially'. perpendicular to the.` longitudinallinefof said draftdevice.

5. .A conveyer flight comprisinga substantially triangular pyramidal..bOdypOrtiOn.havingat its apexa spadelike.prolongationin thev plane deat. the base. end of said .body portion adapted. to

beseCuredto adraft device to position said fin.

in a plane substantially :perpendicular tothe lonhorizontally... extending elongated body portion adapted forattachment -atbneend to .a motive element with. its4 other. end. in freely projecting .f relation,.,the top,.of said-.ilightbeing declinedy. from.,1said.one.end,1to. thevother end, and a se- 50`faced .tovvardthe Y.inner .VendA 0f the flight, their".

.y horizontally extending.. elongated. rbody Y portion inner edgesbeing .at aboiitthirtyy degreesto per-Vv pendicular`v linespa'ssing throughtheir apices and.;

glieesftosuch lines. y yThe,inneredge's of the teeth.,

' top portion ofl therlightfbody, the .angle l.at the ries .n of. .alined substantially triangular Tteeth. ex#

vtending longitudinally of the top. ofthe. flight.

7..A .conveyer flight-comprising a norm-ally adapted,V for` attachment at. onefend to a motive y relation,. the top... of 4said..fligl1tt being declined mare lsubstantially perpendicular .to the .inclined apex` or .pointofeach toothr being-about seventy-rv vedegreespr somewhatV less .than a right angle.

Dueitovtheldescribe'd arrangement and` relation compi, parts,..the. ,flight just described 1 has. .fa .particua "iariy efreenveacnonin 1ifting'-l1p the materializa# be transported'. dragging ,it on theconveyer, and disrupting vbulky masses.`

tending longitudinally of the top of the tiiight,`

said. teeth. presenting, .edges substantially .per-A pendicular4 to. .the.inclined.topy of vthe night and faced toward the attachedend of Athe flight;

8.,A .conveyer flight comprising a normally horizontally extending elongated .body portion.v

It'willbe understood thatI do' not limit myself..

artotheexact detailsof structure shown and` de- `scribed, thefollowing claims..being determinative of the scope `ofthe invention. f

I "claim:

1 In combination, .a 4conveyer vchain. .comprising teva .link'composed .of .a pair. of parallel plates pro- "videdatoneside of thel chain with .oppositely pro-M jectingjiianges adapted to ,beengaged in oppositel Y apex angle ..of..each tooth` .being` `soiznewhatless guide grooves, said plates projectingbeyond .the

other side ofr the chain. andhaving their proj Q Cti 'gggngFrporticns providedwithaiigned apertures,..a...ing links, each,composed-Oiapair0f paralleliY adapted forattachment. atlonegen'd to a .motive element. lWith .its otherL .end infreely projecting f.

relation, :the top: ofc-said ffiight'` being .declined from said oneend tothe other end,.and a,se.4

ries of alined substantially.triangular..;-teeth..exs

tending longitudinally ,of Athe-*top*1 `of the flight,A

said teeth presenting edges substantially.,perf,v

pendicularto .the..inclined top offthe flight, and faced toward. the attachedend y.of the` flight, the

than .aright angle... A I y 9.' In. combination,.,a. conveyerphain comprislac.

plates provided at one side of the chain with oppositely projecting flanges adapted to be engaged in opposed guide grooves and at the other side with aligned apertures, a flight having flanges provided with apertures registering with the firstnamed apertures, pins passed through the registering apertures to connect the flight and link,

provided with apertures registering with the firstnamed apertures, pins passed through the registering apertures to connect the flight and link, the plates of each link being provided with aligned pintle receiving apertures intermediate the rstnamed apertures and said oppositely projecting iianges, blocks having apertures registering with the adjacent pintle-receiving apertures of adjacent links, and pintles connecting the blocks and links, each of said blocks being articulated on an axis extending transversely of the pintles.

11. A conveyer night of elongated form adapted to be propelled along and over a supporting surface, said flight being declined longitudinally to a relatively thin freely projecting extremity and having a top longitudinal edge provided with serrations, the night having a front surface forwardly declined to a bottom edge adapted for scraping contact With said surface.

NILS D. LEVIN. 

